6-46 | Model 931S / Model 932S UV Analyzers
Setup (tab)Temp
Control
Decimal Alarm
Bit Value Type Alarm Condition / Description and Suggested Corrective Action
2 4 Warning w: Probe temperature range
The probe temperature has exceeded its Too Hot setpoint.
Note: This alarm is used only by analyzers using an unheated sample probe
(not controlling the sample probe).
Corrective Action:
• From the Temperature Control dialog box, check the Probe Setpoint and
Too Hot setpoint. The Probe Setpoint should be 5 °C to 10 °C above the Too
Hot temperature.
Take appropriate safety precautions, and:
• Check the Probe RTD – inside the Probe Heater Assembly – for a short or
open circuit. Contact AMETEK to verify operation before removing this
component.
3 8 Warning w: Excessive zero drift
This condition indicates excessive Zero Drift, such as when Zero gas
transmission values attained after a Zero have exceeded user specied values.
Corrective Action:
• Perform a Zero. See Chapter 5 for calibration information.
• From the Analyzer Data tab, check the Bench Temperature to ensure it has
stabilized.
• From the Status tab, check the HC Scode and MC Scode alarm lists for
alarms that indicate contaminated Measuring Cell, optics, and/or sample
system.
If necessary, clean the appropriate component(s) of the sample system that
require cleaning.
• From the Gas Calibration dialog box, ensure the ZCalDriftSpec values are
appropriate and have not been changed.
• This condition may also indicate that the lamps need to be replaced, especially
if a “w: ALC out of range” alarm is also displayed on the Status tab (in the
MC Scode alarm list). See “Source Lamp Replacement” in this chapter.
Setup (tab)Gas
Calibration
To Next Page
Loading...
Need help?
General
